Some climbers consider Five Ten's first Five Tennie the original approach shoe, and the Five Tennie DLX incorporates Adidas technology for a sportier feel. It has a mesh upper that provides sock-like breathability to keep comfier in warmer weather, and the leather paneling and rubber rand still ensure long-lasting durability. Adidas added a Boost midsole for energy return, and Five Ten's Stealth Ph rubber sole includes a tackier "climbing zone" for smearing your way up a delicate slab to the bottom of some routes.